Shade roller



A. COPPOLA Sept. 16, 1930.

same 'aomaa Filed July 5. 192a INVENTOR.

A TTOR Em Patented Sept. 16, 1930 PATENT OFFICE AUGUST COPPOLA, OF NEWYORK, N. Y.

SHADE ROLLER,

Application filed July 5,

This invention relates to shade rollers.

Among the objects of the invention is to provide a device of thecharacter described which shall be cheap to manufacture, comprise fewand simple parts, permit quick assembly and shall yet be rugged inconstruction, and efiicient and practical to a high degree.

Other objects of this invention will in part be obvious and in parthereinafter pointed out.

The invention accordingly consists in the features of construction,combinations of elements, and arrangement of parts which will beexemplified in the construction hereinafter described, and of which thescope of application will be indicated in the following claims.

Fig. 1 is a side elevation with parts broken away, of a roller shadeembodying the invention; 1 I

Fig. 2 is an end View of the roller with parts broken away to show theinterior con struction;

Fig. 8 is a partial cross-sectional View taken on line 3-3 of Fig. 2;

Fig. 4 is a front view of a blank from which one of the parts is formed;

Fig. 5 is a front View of the part formed from the blank shown in F ig.4;

Fig. 6 is a detail view showing the pawl assembly; and

Fig. 7 is a View of the pawl housing taken from the interior of theroller.

Referring in detail to the drawing, 10 designates the shade rollerembodying the invention which is here seen to comprise a tubular roller11 preferably made of wood, mounting a curtain roll 12. Said roller isformed with a closed end 13 and an open end 14 and is provided withmeans at both ends thereof for mounting the shade on a window frame (notshown). At the closed end 13, the mounting means comprises a cap member15 snugly fitted over said end portion 13 and comprising an end wall 16and a cylindrt cal portion 17. Said end wall 16 is apertured centrallythereof to receive a pin 18 driven into said end portion 13 of theroller. Said pin 18 is preferably provided with a shoul 1925. Serial No.290,33

der flange 19 adjacent the outer end thereof, abutting said end wall 16.The cap member 15 is preferably formed of stamped sheet metal and theend wall 16 thereof may be formed with prongs 2O punched into said endwall 13 to more firmly secure said cap to said roller. T 1e outer endportion 21 of said pin 18 is adapted to be inserted in an ordinarybearing bracket in the window frame for mounting the roller, as is wellknown in the art. Where the frame is somewhat wider than the roller, thepin 18 may be withdrawn a short distance as required to lengthen theshade. It will be noted that when the pin is thus pulled, the shoulder19 of said pin is necessarily removed from abutting relation with thecap member 15. In such position the pron s 20 prevent the cap memberfrom becoming loose on the roller 11.

The means for mounting the roller 11 at the open end 1 1, comprises acap member 25 fitted over said open end. Said cap member 25 being formedwith a cylindrical portion 26 and an eno wall 27, spaced from the openend of the roller. The cylindrical portions 26 may be formed with aninwardly pressed outer edge portion 28 for firmly securing said cap tothe roller 11.

A stamped, cup-shaped member 29 may be housed. in the cap member 25between the spaced walls 26 and 14-. bald member 29 comprises acylindrical portion 30 contacting the inner surface of wall 2'? of saidcap 25, and an end wall 31 adjacent the roller end 14. Said end wall 31may be punched to provide diametrically spaced prongs 32 which areforced into the end portion 14 of the roller 11 to fix said member 29thereto. The end wall 31 may be further stamped to provide diametricallyspacer. strap portions 33 abutting said end portion for a purposehereinafter appearing, also stamped to provide a central bearing portionA spindle 35 extends within the roller and is provided with a metal bandsecured thereto at one end thereof, the band 36 having a reduced portion36 journaled in bearing 84. A. flat crossshaped member complementary topin 18, may be secured to said spindle 85, one end 38 of said member 3?being driven into the left end of the spindle (as seen in Fig. 3)

and secured thereto by a pin 39. Said member 37, it will be noted,extends thru an enlarged opening 40 in the end wall 26 of cap 25 andthru a-suitable opening in the metallic band 36, and is provided withaligned proj ections 41 and a tongue or trunnion 42 which is engageablein the slot of an ordinary shade roller fixture to non-rotatably supportsaid spindle 35.

The customary coil retrieving spring 43 surrounds the spindle andissecured thereto at one end 44 preferably by inserting the outerconvolution 45 of said springin a slit 46 cut in said end 44, Theopposite end of the spring 43 is secured to the cup member 31,preferablyby passing the outer convolution 47 thereof thru the openingformed by the strap member .33.

It will now be apparent that when the between the projections 41 and theband 86. Said plate 51 is provided with diametrically spaced peripheralangular notches 52, each notch presenting a ramp portion 53 and anabutment wall 54. Said notches 52 are adapted to receive dogs or pawls55 pivotally mounted, as hereinafter described, on a stamped plate 56positioned within cup member 29 and adjacentend wall 26 of cap member25. ,Said plate 56 may be formedfrom theblank shown in Fig. 4 which isseen to comprise four equally spaced extensions 57 and four projections58, alternately spaced between said extensions 57. Said plate "56 isfurther provided with an enlarged opening 59 thru which the member37 mayextend.

Theprojections 58 are bent at rightangles to the plate 56, as seen inFig. 5', and are formed with reduced end portions 59 received insuitable openings 60 formed in wall 31 of member 29. r The projections58 thus comprise shafts extending between plate 56 and wall 31 andsupported by the latter. Said shafts 58 "further provide means forsecuring said plate 56 against rotation relatively. tosaid member '29.Four dogs 55 are provided and each is formed with an opening 61 at oneend thereof for mounting said dogs on said shafts 58. It will now beapparent that by lowering the shade the roller may be rotated in acounterclockwise direction looking at Fig.2: During this movement thedogs simply slide over ramps 53. Upon release of the curtain thetensioned spring will tend to rotate the roller in an oppositedirection. 7 However, a dog 55 will engage stops 54 to prevent the shadefrom rewinding. When, however, the curtain is given a sudden jerk down,the roller rotates quickly and the dogs fly out radially due tocentrifugal force. Sudden release of the curtain will now permitrewinding of the curtain since the dogs are out of engagement with thenotches 52. During the rewinding of the curtain, centrifugal force dueto rotation will continue to hold the dogs out of conj tact with stops54. j

The parts comprising the mounting and brake structure are made of metalstampings which may readily be assembled in'a manner obvious from'theabove description. 7 v o It will thus be seen that there isprovided adevice in which the several objects of this invention are achieved, andwhich is well adapted to meet the conditions of practical use. 7 j v rAs various possibleeinbodiments might be made of the above invention,and as var ous changes might be made in the embodiment set forth, it isto be understood that all matter herein set forth or shown in theaccompanying drawing is to be interpreted as illustrae tive and not in alimiting sense.

Having thus described my .invention, I claimas new and desire to secureby Letters Patent r 1. In a shade of the character described, in

combination, a tubular roller having an open 7 end portion, a cap membersecured to said rollerat said open end portion, said cap having acylindrical wall, and an end wall spaced from saidportion, and onewayspeed responsive stop'mean's housed within said cap member, saidmeans comprising a plate inounted within said cap adjacent said-end walland having integralprojections bent at right angles to the plane of saidplate, pawls pivotally mounted on said projections, and a secondplatesecured to said rollerand havingopenings slidably receiving thefree end portions of said projections, said end wall retainingsaid endportions within said open ings.

2. In a shade of the character described, in

combination, a tubular rollerlhaving an open endportion,'a capmembersecured to said rollerv at said open portion, said cap having anapertured end wall spaced from said portion, a spindle extending withinsaid roller,

bearing means for said spindlewith'in said cap member, and means formounting said roller on awindow frame'secured to said spindle andextending thru said aperture,- a. ratchet plate non-'rotatably mountedon said mounting means, said plate having'a pair of diametricallydisposed notches in. the planeof said mounting means, and a'plurality ofpawls mounted within saidcap. member co- 7 operating with said notches.i

"8. In a shade of the'character described,',

in. combination, a tubular rollerhavingan said portion,

open end portion, a cap member secured to said roller at said openportion, said cap having an apertured end wall spaced from a spindleextending within said roller, bearing means for said spindle within saidcap member, means for mounting said roller on a window frame secured tosaid spindle and extending thru said aperture, and speed responsiveone-way brake means housed within said cap member between said aperturedwall and said bearing means, said last mentioned means comprising aplate adjacent the inner surface of the cap end wall, said plate havinga plurality of spaced integral projections bent away from said end wall,and dogs mounted on said projections.

at. In a shade of the character described, in combination, a tubularroller having an open end portion, a cap member secured to said rollerat said open portion, said cap having an apertured end wall spaced fromsaid portion, a spindle within said cap member, a member havingnon-circular crossscctions for mounting said roller on a window framesecured to said spindle and extending thru said aperture, and speedresponsive one-way brake means housed within said cap member betweensaid apertured wall and said bearing means, said brake means comprisinga ratchet plate having a slot for receiving said mounting member, aplate member housed within said cap adjacent said end wall, and pawlmember-s co-operating with said plate, pivotally mounted on said bearingmeans.

5. In a shade of the character described, in combination, a tubularroller having an open end portion, a cap member secured to said rollerat said open portion, said cap having an apertured end wall spaced fromsaid portion, a spindle extending within said roller, bearing means forsaid spindle within said cap member, means for mounting said roller on awindow frame secured to said spindle and extending thru said aperture,and speed responsive one-way brake means housed within said cap memberbetween said apertured wall and said bearing means, said brake meanscomprising a ratchet plate, pawl members cooperating therewith, and aplate member positioned within said cap adjacent said apertured endwall, said plate having projections formed integral therewith and bentat right angles thereto to provide shafts for pivotally mounting saidpawl members.

6. Ina shade of the character described, in combination, a tubularroller having an open 7 end portion, a cap member secured to said rollerat said open portion, said cap having a cylindrical wall and anapertured end wall spaced from said portion, a spindle extending withinsaid roller, a cup shaped member within said cap, said member having,bearing means for said spindle and a flange portion substantiallycontactingthe inner surface of said cylindrical wall, means for mountingsaid roller on a window frame secured to said spindle and extending thrusaid aperture, and speed responsive one-way brake means housed withinsaid cap member between said apertured wall and said bearing means, saidbrake means comprising a ratchet plate, pawl members cooperatingtherewith, and a plate member positioned within said flange and adjacentthe apertured end wall of said cap member, said plate having projectionsformed integrally therewith and bent at right angles thereto, saidbearing means having apertures to receive said projections, saidprojections pivotally mounting said pawl member.

7. In a shade roller of the character described, in combination, atubular roller having an open end portion, a cap member secured to saidroller on said end portion, said cap member having a cylindrical wall,and an apertured end wall spaced from said end portion, a spindle withinsaid roller extending through the aperture in said end wall, a bearingmember for said spindle within said cap secured to said roller andhaving a portion contacting the inner surface of said cylindrical wall,a plate mounted within said cap adjacent said end wall and havingprojections bent at right angles to the plane of said plate, saidbearing member having openings for receiving the free end of saidprojections, and pawls pivotally mounted on said projections.

In testimony whereof I affix my signature.

AUGUST COPPOLA.

